If you are talking about the I-693 medical exam, I don't think any insurance covers the costs or even partial costs.
https://www.visajourney.com/forums/topic/798091-request-for-form-i-693-courtesy-email/page/2/#findComment-10826873
The Civil Surgeon we went to was in our health insurance network, but the clinic did not deduct any of the costs even with our health insurance card.
You can call around / shop around, but the costs I found in Atlanta were around 300-400, even if you want the doctor to do the minimum like transcribe the vaccine record.
In our case, my foreign spouse was missing a vaccine dose, so we paid an extra 160 just to get it done that day. We could have probably gotten the vaccine dose at Kroger for free, covered by our health insurance, but we wanted the I-693 paperwork done ASAP to submit to USCIS.
Do you have dental coverage from work?
Even with most dental coverage, expect the extraction and crown to be 500-1000 or higher.